kgio provides non-blocking I/O methods for Ruby without raising
exceptions on EAGAIN and EINPROGRESS. It is intended for use with the
Unicorn and Rainbows! Rack servers, but may be used by other
applications (that run on Unix-like platforms).

* http://bogomips.org/kgio/
* kgio@librelist.org />* git://bogomips.org/kgio.git

Changes:

Fix a missing #include for Ruby 1.8.5 users. No need to
upgrade to this (nor 2.7.1) if you're on a modern version
of Ruby.